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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
COSTCO WHOLESALE CORP NEW: COST
Price: 11/6/26 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$1,053.56 $1,096.50 $844.06 $466,863 443 2,175 0.6% 1.7% 74.51% 0.09%
Exch Sector Industry Sub-Industry
NasdaqGS Retail Trade General Merchandise Stores Retail- Variety Stores
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#
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
SULLIVAN JOHN CHRISTOPHER
VP
JS
$3,831,778
3,763
---
10/22/26
---
$1,018.21
48,460
-7.2
D
R
10/27/26 - 4:16:05 pm
2
    
 
SULLIVAN JOHN CHRISTOPHER
VP
JB
---
4,552
---
10/22/26
---
---
52,223
9.5
D
R
10/27/26 - 4:16:05 pm
3
    
 
SELF ADAM WEBB
VP
JS
$264,497
260
---
10/22/26
---
$1,018.21
3,270
-7.4
D
R
10/27/26 - 4:14:49 pm
4
    
 
POLIT JAVIER
VP
JS
$1,600,235
1,572
---
10/22/26
---
$1,018.21
12,747
-11.0
D
R
10/27/26 - 4:13:36 pm
5
    
 
POLIT JAVIER
VP
JB
---
4,129
---
10/22/26
---
---
14,319
40.5
D
R
10/27/26 - 4:13:36 pm
6
    
 
MILLERCHIP GARY
VP
JS
$1,660,438
1,631
---
10/22/26
---
$1,018.21
19,975
-7.5
D
R
10/26/26 - 9:53:07 pm
7
    
 
MILLERCHIP GARY
VP
JB
---
6,140
---
10/22/26
---
---
21,605
39.7
D
R
10/26/26 - 9:53:07 pm
8
    
 
VACHRIS ROLAND MICHAEL
PR,CEO,DIR
JS
$3,722,183
3,656
---
10/22/26
---
$1,018.21
62,575
-5.5
D
R
10/26/26 - 9:44:33 pm
9
    
 
VACHRIS ROLAND MICHAEL
PR,CEO,DIR
JB
---
13,973
---
10/22/26
---
---
66,231
26.7
D
R
10/26/26 - 9:44:33 pm
10
    
 
WILDEROTTER MARY AGNES
DIR
JB
---
266
---
10/22/26
---
---
8,527
3.2
D
R
10/26/26 - 9:28:13 pm
11
    
 
STANTON JOHN W
DIR
JB
---
266
---
10/22/26
---
---
24,356
1.1
D
R
10/26/26 - 9:21:10 pm
12
    
 
RAIMONDO GINA MARIE
DIR
JB
---
266
---
10/22/26
---
---
481
123.7
D
R
10/26/26 - 9:13:22 pm
13
    
 
RAIKES JEFFREY S
DIR
JB
---
266
---
10/22/26
---
---
6,310
4.4
D
R
10/26/26 - 9:06:34 pm
14
    
 
KLAUER JAMES C
VP
JS
$2,139,631
2,101
---
10/22/26
---
$1,018.21
45,929
-4.4
D
R
10/26/26 - 6:42:25 pm
15
    
 
JEWELL SARAH MR SALLY
DIR
JB
---
266
---
10/22/26
---
---
3,879
7.4
D
R
10/26/26 - 6:32:30 pm
16
    
 
JAMES HAMILTON E
DIR
JB
---
266
---
10/22/26
---
---
55,804
0.5
D
R
10/26/26 - 6:28:48 pm
17
    
 
GEORGE SARAH CATHERINE
VP
JS
$264,491
260
---
10/22/26
---
$1,018.21
3,868
-6.3
D
R
10/26/26 - 6:27:06 pm
18
    
 
FOULKES HELENA
DIR
JB
---
266
---
10/22/26
---
---
1,353
24.5
D
R
10/26/26 - 6:21:10 pm
19
    
 
DENMAN KENNETH D
DIR
JB
---
266
---
10/22/26
---
---
5,045
5.6
D
R
10/26/26 - 6:19:39 pm
20
    
 
DECKER SUSAN L
DIR
JB
---
266
---
10/22/26
---
---
8,798
3.1
D
R
10/26/26 - 6:17:11 pm
21
    
 
BARBRE TIFFANY MARIE
AO
JS
$546,543
537
---
10/22/26
---
$1,018.21
6,584
-7.5
D
R
10/26/26 - 6:15:38 pm
22
    
 
BARBRE TIFFANY MARIE
AO
JB
---
1,965
---
10/22/26
---
---
7,120
38.1
D
R
10/26/26 - 6:15:38 pm
23
    
 
ADAMO CLAUDINE
VP
JS
$704,462
692
---
10/22/26
---
$1,018.21
6,442
-9.7
D
R
10/26/26 - 6:13:41 pm
24
    
 
WILCOX WILLIAM RICHARD
VP
S
$1,054,026
1,100
---
10/13/26
---
$958.21
3,094
-26.2
D
---
10/14/26 - 7:00:30 pm
25
    
 
FRATES CATON
VP
S
$733,328
801
---
9/29/26
---
$915.93
7,912
-9.2
D
---
9/30/26 - 5:52:40 pm
26
    
 
ADAMO CLAUDINE
VP
S
$2,015,046
2,200
---
9/29/26
---
$915.93
7,134
-23.6
D
---
9/30/26 - 5:48:20 pm
27
    
 
WILCOX WILLIAM RICHARD
VP
JS
$1,745,753
1,935
---
9/10/26
---
$902.38
4,194
-31.6
D
R
9/14/26 - 5:30:24 pm
28
    
 
WILCOX WILLIAM RICHARD
VP
JB
---
4,129
---
9/10/26
---
---
6,129
206.5
D
R
9/14/26 - 5:30:24 pm
29
    
 
RUBANENKO YORAM
VP
JS
$1,530,393
1,696
---
9/10/26
---
$902.38
10,680
-13.7
D
R
9/14/26 - 5:28:42 pm
30
    
 
RUBANENKO YORAM
VP
JB
---
4,129
---
9/10/26
---
---
12,376
50.1
D
R
9/14/26 - 5:28:42 pm
31
    
 
RIEL PIERRE
VP
JS
$1,409,211
1,562
---
9/10/26
---
$902.38
14,246
-9.9
D
R
9/14/26 - 5:25:36 pm
32
    
 
RIEL PIERRE
VP
JB
---
4,552
---
9/10/26
---
---
15,808
40.4
D
R
9/14/26 - 5:25:36 pm
33
    
 
KLAUER JAMES C
VP
JS
$844,731
936
---
9/10/26
---
$902.38
48,030
-1.9
D
R
9/14/26 - 5:23:46 pm
34
    
 
KLAUER JAMES C
VP
JB
---
4,129
---
9/10/26
---
---
48,966
9.2
D
R
9/14/26 - 5:23:46 pm
35
    
 
JONES TERESA A
VP
JS
$1,316,153
1,459
---
9/10/26
---
$902.38
6,598
-18.1
D
R
9/14/26 - 5:22:13 pm
36
    
 
JONES TERESA A
VP
JB
---
4,129
---
9/10/26
---
---
8,057
105.1
D
R
9/14/26 - 5:22:13 pm
37
    
 
FRATES CATON
VP
JS
$1,492,864
1,654
---
9/10/26
---
$902.38
8,713
-16.0
D
R
9/14/26 - 5:20:20 pm
38
    
 
FRATES CATON
VP
JB
---
4,552
---
9/10/26
---
---
10,367
78.3
D
R
9/14/26 - 5:20:20 pm
39
    
 
ADAMO CLAUDINE
VP
JS
$827,198
917
---
9/10/26
---
$902.38
9,334
-8.9
D
R
9/14/26 - 5:17:41 pm
40
    
 
ADAMO CLAUDINE
VP
JB
---
4,129
---
9/10/26
---
---
10,250
67.5
D
R
9/14/26 - 5:17:41 pm
41
    
 
SELF ADAM WEBB
VP
3
---
---
---
8/31/26
---
---
3,529
---
D
A
9/30/26 - 5:46:16 pm
42
    
 
SELF ADAM WEBB
VP
3
---
---
---
8/31/26
---
---
3,527
---
D
R
9/10/26 - 5:48:38 pm
43
    
 
RAIKES JEFFREY S
DIR
JS
---
5,249
---
7/10/26
---
---
6,044
-46.5
D
---
7/14/26 - 4:14:16 pm
44
1y
4
25%
8%
7
DENMAN KENNETH D
DIR
S
$847,345
885
---
6/23/26
---
$957.45
4,779
-15.6
D
---
6/25/26 - 4:12:30 pm
45
    
 
FRATES CATON
VP
S
$695,100
700
---
4/1/26
---
$993.00
5,815
-10.7
D
---
4/1/26 - 6:13:26 pm
46
    
 
GEORGE SARAH CATHERINE
VP
JS
$636,483
642
---
3/12/26
---
$991.21
---
All
I
---
3/13/26 - 4:12:33 pm
47
    
 
MILLERCHIP GARY
VP
JS
$1,145,050
1,154
---
3/11/26
---
$992.23
15,465
-6.9
D
R
3/13/26 - 4:10:05 pm
48
    
 
ADAMO CLAUDINE
VP
S
$732,205
730
---
3/9/26
---
$1,003.02
6,121
-10.7
D
---
3/11/26 - 4:08:32 pm
49
    
 
GEORGE SARAH CATHERINE
VP
3
---
---
---
3/2/26
---
---
4,128
---
D
A,R
5/15/26 - 6:31:39 pm
50
    
 
GEORGE SARAH CATHERINE
VP
3
---
---
---
3/2/26
---
---
1,401
---
D
---
3/11/26 - 5:06:06 pm
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